Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2012        Go!    
 
 
October 19, Thursday 2017 4:25 PM       

       HEADLINES: Dileep offers prayers at Sabarimala                                              Saritha lodges complaint against former SIT                                              There’s no boundary for love, inter-caste marriages should be encouraged: HC                                              CPM leader GD Nair passes away                                              Dileep forged fake medical documents: Police                                              MSRTC strike enters third day                                              Air quality in Delhi reaches hazardous level                                              Taj Mahal may meet the same fate as Babri Masjid: Azam Khan                                              Modi to celebrate Diwali with army soldiers in Gurez                                              Dogs in Nepal get VIP treatment on second day of Tihar                                              Brazil drub Honduras 3-0, face Germany in quarterfinals                                              Katsumi hopes to win maiden I-League for East Bengal                                              De Villiers hits 176 as South Africa score 353/6 vs B'desh                                              Ish Sodhi replaces injured Todd Astle in NZ squad                                              PV Sindhu bows out of Denmark Open                                              Kaumudi Facebook
       SCI&TECH Next Article: After Mars, ISRO eyes Venus and Jupiter  
       NASA to launch two robotic probes to study early solar system
 
         Posted on :17:23:03 Jan 5, 2017
   
A A
       Last edited on:17:23:03 Jan 5, 2017
         Tags: NASA, robotic probes, solar system
 
WASHINGTON: NASA has announced two robotic missions to asteroids that will open new windows on one of the earliest eras in the history of our solar system – a time less than 10 million years after the birth of the Sun.
 
The missions, known as Lucy and Psyche, were chosen from five finalists and will proceed to mission formulation, with the goal of launching in 2021 and 2023, respectively.
 
"Lucy will visit a target-rich environment of Jupiter's mysterious Trojan asteroids, while Psyche will study a unique metal asteroid that's never been visited before," said Thomas Zurbuchen, associate administrator for NASA's Science Mission Directorate in Washington.
 
Lucy, a robotic spacecraft, is scheduled to launch in October 2021. It is slated to arrive at its first destination, a main belt asteroid, in 2025.
 
From 2027 to 2033, Lucy will explore six Jupiter Trojan asteroids. These asteroids are trapped by Jupiter's gravity in two swarms that share the planet's orbit, one leading and one trailing Jupiter in its 12-year circuit around the Sun.
 
The Trojans are thought to be relics of a much earlier era in the history of the solar system, and may have formed far beyond Jupiter's current orbit.
 
"Because the Trojans are remnants of the primordial material that formed the outer planets, they hold vital clues to deciphering the history of the solar system," said Harold F Levison, principal investigator of the Lucy mission from the Southwest Research Institute in Boulder, Colorado.
 
"Lucy, like the human fossil for which it is named, will revolutionise the understanding of our origins," said Levison.
 
The Psyche mission, targeted to launch in October of 2023, will explore one of the most intriguing targets in the main asteroid belt – a giant metal asteroid, known as 16 Psyche, about three times farther away from the sun than is the Earth.
 
This asteroid measures about 210 kilometres in diameter and, unlike most other asteroids that are rocky or icy bodies, is thought to be comprised mostly of metallic iron and nickel, similar to Earth's core.
 
Scientists wonder whether Psyche could be an exposed core of an early planet that could have been as large as Mars, but which lost its rocky outer layers due to a number of violent collisions billions of years ago.
 
The mission will help scientists understand how planets and other bodies separated into their layers – including cores, mantles and crusts – early in their histories.
 
"This is an opportunity to explore a new type of world – not one of rock or ice, but of metal," said Psyche Principal Investigator Lindy Elkins-Tanton of Arizona State University.
 
"16 Psyche is the only known object of its kind in the solar system, and this is the only way humans will ever visit a core. We learn about inner space by visiting outer space," said Elkins-Tanton.
 
Psyche, also a robotic mission, will be arriving at the asteroid in 2030, following an Earth gravity assist spacecraft manoeuvre in 2024 and a Mars flyby in 2025. 
A A
       SCI&TECH
Next Article: After Mars, ISRO eyes Venus and Jupiter
 
 
SCI&TECH HEADLINES
Stress as unhealthy as junk food  
Planet Nine does exist in solar system: NASA  
Blame these hormones if your dog is getting aggressive  
Save big on Infinix Note 4, Hot 4 Pro during Flipkart's 'Big Diwali Sale'  
Even modest exposure to oil can harm coastal, marine birds  
Starfish, anemones protect ecosystems from climate change  
Skipping breakfast may help to shed those extra kilos  
Dozing off during lecture? Blame your neurons  
Google's Pixel 2 promotes safe driving through automatic 'do not disturb' mode  
Researchers create molecule that could kill HIV  
Google unveils new moves to boost struggling news organizations  
Here's how zebrafish get its stripes  
Facebook to introduce facial recognition for account security  
LG launches smartphone to 'keep mosquitos at bay'  
New spider species named after DiCaprio, Obama  
Astrophysicists make music from Saturn's moons, rings  
Rooter includes Kabbadi, F1 under one roof  
Orbiting supermassive black holes discovered for first time  
Theweightmonitor.com launches mobile app for easier access to one-stop weight management platform  
New drug to treat blood cancer developed  
Threat of asteroid impact looming over Earth: experts  
Hottest known planet in universe discovered  
Wireless, battery-less pacemaker developed  
'Manned missions to Moon, Mars may face medical emergencies'  
Ransomware threat: Centre activates mechanism to prevent ‘Wannacry’ cyber attack  
 
Is there any logic in making Dileep the first accused in the actress attack case?
yes
 
no
 
no opinion
 
 
 
Home Kerala India World Business Sports Sci&Tech Education Automobile CityNews Movies Environment Letters 
© Copyright keralakaumudi Online 2011  |  Reproduction in whole or in part without written permission is prohibited.
Head Office Address: Kaumudi Buildings, Pettah P.O, Trivandrum - 695024, India.
Online queries talk to Deepu Sasidharan, + 91 98472 38959 or Email deepu[at]kaumudi.com
Customer Service -Advertisement Disclaimer Statement   |  Copyright Policy